<!DOCTYPE html>
<html>
<head>
<style>
.back {
    will-change: transform;
    width: 320px;
    height: 427px;
    background: lightblue;
    opacity: 0.5;
}
</style>
</head>

<body>
<div class="back"></div>
<p>This test verifies that "will-change" preserves the backface-visibility for
   scrollbar.</p>
</body>
</html>
